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<html>
<head>
<meta charset="utf-8">
<title>CSS Masking Module Level 1: getComputedStyle().mask</title>
<link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-mask">
<meta name="assert" content="mask computed value is as specified.">
<script src="../../../resources/testharness.js"></script>
<script src="../../../resources/testharnessreport.js"></script>
<script src="../../../css/support/computed-testcommon.js"></script>
</head>
<body>
<div id="target" style="display:none"></div>
<script>
// value: <mask-layer>#
// <mask-layer> =
//   <mask-reference> ||
//   <position> [ / <bg-size> ]? ||
//   <repeat-style> ||
//   <geometry-box> ||
//   [ <geometry-box> | no-clip ] ||
//   <compositing-operator> ||
//   <masking-mode>

// <mask-reference> = none | <image> | <mask-source>
test_computed_value('mask', 'none');
test_computed_value('mask',
    'linear-gradient(to left bottom, red, blue)',
    'linear-gradient(to left bottom, rgb(255, 0, 0), rgb(0, 0, 255))');
test_computed_value('mask',
    'linear-gradient(to left bottom, red, blue) luminance',
    'linear-gradient(to left bottom, rgb(255, 0, 0), rgb(0, 0, 255)) luminance');
test_computed_value('mask', 'url("https://example.com/")');

// <position> [ / <bg-size> ]?
test_computed_value('mask',
    'linear-gradient(to left bottom, red, blue) 1px 2px',
    'linear-gradient(to left bottom, rgb(255, 0, 0), rgb(0, 0, 255)) 1px 2px');
test_computed_value('mask', 'url("https://example.com/") 1px 2px / contain');

// <repeat-style> = repeat-x | repeat-y | [repeat | space | round | no-repeat]{1,2}
test_computed_value('mask', 'repeat-y');

// <geometry-box> = <shape-box> | fill-box | stroke-box | view-box
// <shape-box> = <box>
// <box> = border-box | padding-box | content-box
test_computed_value('mask', 'border-box', 'none');
test_computed_value('mask',
    'linear-gradient(to left bottom, red, blue) padding-box',
    'linear-gradient(to left bottom, rgb(255, 0, 0), rgb(0, 0, 255)) padding-box');
test_computed_value('mask', 'content-box');
test_computed_value('mask', 'url("https://example.com/") fill-box');
test_computed_value('mask',
    'linear-gradient(to left bottom, red, blue) stroke-box',
    'linear-gradient(to left bottom, rgb(255, 0, 0), rgb(0, 0, 255)) stroke-box');
test_computed_value('mask', 'view-box');

// [ <geometry-box> | no-clip ]
test_computed_value('mask', 'no-clip');

// <compositing-operator> = add | subtract | intersect | exclude
test_computed_value('mask',
    'url("https://example.com/") add',
    'url("https://example.com/")');
test_computed_value('mask', 'subtract');
test_computed_value('mask', 'url("https://example.com/") intersect');
test_computed_value('mask',
    'linear-gradient(to left bottom, red, blue) exclude',
    'linear-gradient(to left bottom, rgb(255, 0, 0), rgb(0, 0, 255)) exclude');

// <masking-mode> = alpha | luminance | auto
test_computed_value('mask', 'alpha');
test_computed_value('mask', 'url("https://example.com/") alpha');

// Test the combination of mask-origin and mask-clip.
test_computed_value('mask', 'border-box border-box', 'none');
test_computed_value('mask', 'content-box content-box', 'content-box');
test_computed_value('mask', 'border-box content-box', 'border-box content-box');
test_computed_value('mask', 'border-box no-clip', 'no-clip');

// <mask-layer> = <mask-reference> || <position> [ / <bg-size> ]? || <repeat-style> ||
// <geometry-box> || [ <geometry-box> | no-clip ] || <compositing-operator> || <masking-mode>
test_computed_value('mask',
    'intersect no-clip space round 1px 2px / contain stroke-box linear-gradient(to left bottom, red, blue) luminance',
    'linear-gradient(to left bottom, rgb(255, 0, 0), rgb(0, 0, 255)) 1px 2px / contain space round stroke-box no-clip intersect luminance');
test_computed_value('mask',
    'intersect no-clip space round 1px 2px / contain view-box, stroke-box linear-gradient(to left bottom, red, blue) luminance',
    '1px 2px / contain space round view-box no-clip intersect, linear-gradient(to left bottom, rgb(255, 0, 0), rgb(0, 0, 255)) stroke-box luminance');

test_computed_value('mask', 'none alpha', 'alpha');

</script>
</body>
</html>
